package com.atguigu.gulimall.authserver.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.authserver.feign.MemberFeignService;
import com.atguigu.gulimall.authserver.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session) throws Exception {
        Map<String, String> map = new HashMap<>();
        map.put("client_id", "4282858528");
        map.put("client_secret", "9b8615808f858c3f8f23e7bb4547e7f4");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code", code);
        //根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(), map, new HashMap<>());

        //处理返回结果获取token
        if(response.getStatusLine().getStatusCode() == 200){
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            //当前用户如果第一次进网站，自动注册进来（为当前社交用户生成一个会员信息）
            //登录或者注册这个社交账户
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if(oauthlogin.getCode() == 0) {
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功，用户信息：{}", data.toString());

                session.setAttribute("loginUser", data);
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }

    }

}
